Directions(1 to 10):Several studies have (1) that folks who (2) engage
in mentally challenging activities—like reading, doing
crossword puzzles or playing chess—(3) less likely to
(4) dementia later in life. The difficulty comes in
figuring out (5) their good fortune is a direct (6) of
their leisure activities or whether their continuing
pursuit of these pleasures merely (7) good genes for
cognitive function.
A 20-year survey of 469 elderly people living in the
Bronx, New York, tried to get to the (8)of this chickenor-egg question by following subjects who (9)no signs
of dementia in the first seven years of the study. The
results, which were published in 2003, showed that
readi ng and playi ng board games or a musical
instrument was ( 10) wi th a decreased risk of
Alzehimer's disease.